CN85202366U

CN85202366U - Universal chuck for cutting machine tool

Info

Publication number: CN85202366U
Application number: CN 85202366
Authority: CN
Inventors: 王松涛
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-06-22
Filing date: 1985-06-22
Publication date: 1986-09-10

Abstract

The utility model belongs to a universal four-jaw chuck with a locking mechanism, which not only can be provided with a chuck round bar workpiece, but also can be provided with casting part with a complex chuck shape, and other workpieces. The chuck is provided with four claws which not only can advance and retreat alone, but also can advance and retreat together.

Description

Universal chuck for cutting machine tool

The utility model belongs to a kind of stock-removing machine workpiece chuck.

Existing stock-removing machine workpiece chuck generally is divided into scroll chuck and two kinds of forms of chuck.When processing general scroll chuck that adopts during round bar, its feature is that three claws can only advance to move back altogether motion altogether, if when the comparatively complicated workpiece of other geometry is cast in processing, just must adopt chuck.The characteristics of this chuck are that every claw can only be advanced and retreat separately.The improvement of being done for the stock-removing machine jig both at home and abroad mostly be the improvement on its self-centering, rapid-mounted function, but the citation form of its chuck has still been taked three-jaw and two kinds of structures of four paws at present.

The purpose of this utility model is to design the omnipotent jig of a kind of stock-removing machine, its round bar workpiece that both can be installed, foundry goods and other workpiece that the shape that can be installed again is comparatively complicated.Its four claws can not only be done independent advance and retreat action, can also advance altogether altogether to move back, and claw can also instead as required be adorned simultaneously, thereby have possessed the function of traditional three-jaw and two kinds of chucks of four paws.

Essence of the present utility model is that four uniform claws (7) are arranged on chuck shell (6), and claw (7) has semicircular thread groove, claw (7) but both formal dress also can instead adorn.What be meshed with the semicircular groove of claw (7) is the leading screw (3) that has annular slot, and the outer end of leading screw (3) has square hole D ₂What match with leading screw is secondary pawl (4), and secondary pawl (4) has semicircular and the corresponding groove of leading screw (3) profile, and the draw-in groove of projection is arranged in the centre of groove, makes the leading screw (3) can not be along the chuck radial-play.There is fin the both sides of secondary pawl (4), chuck shell (6) go up with secondary pawl (4) on the corresponding position of fin on the groove of the slip that matches with fin is arranged.The bottom surface of secondary pawl (4) has the screw thread of the approximate Archimedes spiral that is meshed with fluted disc (5).The one side that is shaped as of fluted disc (5) is the thread groove that is similar to Archimedes spiral, and another side is the bevel gear wheel face.What be meshed with the bevel gear wheel face is bevel pinion (2), and there is a square hole D outer end of bevel pinion (2) ₁In the bottom surface of chuck shell, gland (1) is housed, gland (1) with the corresponding position of bevel pinion on four small boss are arranged, in order to reduce and to prevent the vibration of bevel pinion (2).

Stock-removing machine universal chuck operation principle: when processing pole workpiece, only need the chuck spanner is inserted in D ₁The hole rotation just can make four claws advance and retreat simultaneously.Promptly drive fluted disc (5) around the rotation of chuck hub axis by bevel pinion (2), at this moment the approximate Archimedes's screw thread on the fluted disc (5) drives four secondary pawls (4), and drives leading screw (3) and claw (7) by secondary pawl (4) and do and advance to be total to the deactuate work altogether., only need respectively the chuck spanner is inserted in D during in processing than the workpiece of complex geometric shapes ₂The hole rotation gets final product claw (7) chucking workpiece.If during the comparatively complicated workpiece of batch machining geometry, can be with the position of claw (7) by rotating D ₂Once adjust in the hole, when the identical workpiece of processing, only needs rotation D ₁The hole can make claw advance altogether altogether to move back by the geometry that mixes up.

Compared with prior art, the utlity model has following advantage: it can be enhanced productivity, and saves the workman and changes the chuck time.Can prevent because of changing the adverse effect of chuck simultaneously machine tool accuracy, service life.Guarantee workman's production safety.The utility model is particularly suitable for the comparatively complicated workpiece of batch machining geometry, can save the adjustment time that is installed in a large number, increases work efficiency greatly.Because the stock-removing machine universal chuck has the function of three-jaw and two kinds of chucks of four paws simultaneously, alternative traditional jig if promote the use of, can be saved great deal of steel.

The utility model embodiment is as figure.

Description of drawings:

Fig. 1. stock-removing machine universal chuck front view

Fig. 2. stock-removing machine universal chuck A-A profile

Among the figure: (1) gland; (2) bevel pinion;

(3) leading screw; (4) secondary pawl;

(5) fluted disc; (6) shell;

(7) claw; K is anti-dress figure of claw

Fig. 3. fluted disc front view Fig. 4. the fluted disc side view;

Fig. 5. bevel pinion front view Fig. 6. the bevel pinion side view

Fig. 7. gland front view Fig. 8. the gland vertical view;

Fig. 9. shell front view Figure 10. the shell vertical view;

Figure 11. claw front view Figure 12. the claw side view;

Figure 13. leading screw front view Figure 14. the leading screw side view

Figure 15. secondary pawl front view Figure 16. secondary pawl side view;

The fin of secondary pawl will not change the utility model character as making groove into.

Claims

1, a kind of stock-removing machine universal chuck, it forms, it is characterized in that by leading screw (3) and chuck shell (6), the gland (1) etc. of four claws that can advance and retreat separately (7) and drive claw advance and retreat the Lower Half of leading screw (3) is equipped with secondary pawl (4), what be meshed with secondary pawl (4) is fluted disc (5), at the another side of fluted disc (5) four bevel pinions (2) that are meshed with fluted disc (5) is arranged.

2, according to the described stock-removing machine universal chuck of claim 1, it is characterized in that having on the secondary pawl (4) semicircle with the corresponding groove of leading screw (3) profile, the draw-in groove that projection is arranged in the centre of groove, there is fin the both sides of secondary pawl (4), and the another side of secondary pawl (4) has the screw thread that is meshed with fluted disc (5).

3, according to the stock-removing machine universal chuck described in the claim 1, it is characterized in that fluted disc (5) face that is meshed with secondary pawl (4), fluted disc (5) one side is a screw thread, the another side of fluted disc (5) is the auger tooth.

4, according to the stock-removing machine universal chuck described in the claim 2, it is characterized in that fluted disc (5) face that is meshed with secondary pawl (4), fluted disc simultaneously is a screw thread, the another side of fluted disc (5) is the auger tooth.

5,, it is characterized in that uniform the bevel pinion (2) that is meshed with fluted disc (5) the auger flank of tooth on the chuck according to claim 1,2,3,4 described stock-removing machine universal chucks.